Make loadFileMultiple work.

Needs to consider the path to the folder if it wants to load scripts from there.
Make callable as a an array work.

Functions and methods via the Reflection classes works a little different from one to the other. You also need an instance of an object or it's static members, these have also been considered.
Remove ineffective code line

It simply has no purpose before the exception
Remove unused Exception reference
Minimise class member visibility

Simply put it was the ones that didn't have any tests exposing them directly
100% coverage - Added multi test
100% coverage - Invalid input exception
100% Coverage - test callback
Update Foundation
Update composer add respect/test dependency
Update bootstrap.php to support vendor
Use Respect/Test/StreamWrapper yeah
Add lazyload test for issue #24 Fix
Update package.xml
Add package.ini
Update travis configuration
Remove minimum stability install with --dev
update gitignore
Fix problem with make coverage